/**
 * @param {Object} any_date   可以传入任意类型的日期，可以是字符串，可以是时间戳，也可以是Date对象
 * @param {Object} formatStr  想转换出的格式,比如'YYYY年MM月DD日'把时间格式化后得到的就是'2020年06月08日'
 * 格式中字母代表的意义：
 *    YYYY/yyyy/YY/yy 表示年份
 *    MM/M 月份,2个M表示个位数的月份前要加上0，比如08
 *    W/w 星期
 *    dd/DD/d/D 日期,2个d/D表示个位数的日期前要加上0，比如08
 *    hh/HH/h/H 小时,2个h/H表示个位数的小时前要加上0，比如08
 *    mm/m 分钟,2个m表示个位数的分钟前要加上0，比如08
 *    ss/SS/s/S 秒,2个s/S表示个位数的秒前要加上0，比如08
 */
function dateFormat(any_date,formatStr){
    if(!any_date){
      return '';
    }
    if((any_date+'').indexOf('-')>=0){
      any_date = any_date.replace(/\-/g, '/');
    }
    var the_date = new Date(any_date);
    var Week = ['日','一','二','三','四','五','六'];  
    //年
    var yyyy = the_date.getFullYear();
    var yy = (the_date.getYear() % 100)>9?(the_date.getYear() % 100).toString():('0' + (the_date.getYear() % 100));
    formatStr=formatStr.replace(/yyyy|YYYY/,yyyy);
    formatStr=formatStr.replace(/yy|YY/,yy);   
    //月
    var m = the_date.getMonth() + 1;
    var mm = m<10?('0'+m):m;
    formatStr=formatStr.replace(/MM/,mm);
    formatStr=formatStr.replace(/M/g,m); 
    //日
    var d = the_date.getDate();
    var dd = d<10?('0'+d):d;
    formatStr=formatStr.replace(/dd|DD/,dd);
    formatStr=formatStr.replace(/d|D/g,d);
    //星期X(0-6,0代表星期天)
    var w = Week[the_date.getDay()];
    formatStr=formatStr.replace(/w|W/g,w);
    //时
    var h = the_date.getHours();
    var hh = h<10?('0'+h):h;
    formatStr=formatStr.replace(/hh|HH/,hh);
    formatStr=formatStr.replace(/h|H/g,h);
    //分
    var _m = the_date.getMinutes();
    var _mm = _m<10?('0'+_m):_m;
    formatStr=formatStr.replace(/mm/,_mm);
    formatStr=formatStr.replace(/m/g,_m);  
    //秒
    var s = the_date.getSeconds();
    var ss = s<10?('0'+s):s;
    formatStr=formatStr.replace(/ss|SS/,ss);
    formatStr=formatStr.replace(/s|S/g,s);
    return formatStr;
}
/**
 * 从路径中提取文件的信息
 * @param {Object} path 路径
 * 返回一个对象：
 *  {
      fileName:'xxx.doc',//完整的文件名，带上后缀
      type:'doc',//文件类型
      fileExtension:'.doc',//文件后缀
      name:'xxx'//文件名，只有名字
      fullPath:'1111/images/xxx.doc',//完整路径，带有文件名
      path:'1111/images/'//去掉了文件名的路径
    }
 */
function getFileInfo(path){
  var info = {
    fileName:'',//完整的文件名，带上后缀
    type:'',//文件类型
    fileExtension:'',//文件后缀
    name:'',//文件名，只有名字
    fullPath:path,//完整路径，带有文件名
    path:''//去掉了文件名的路径
  };

  var index1 = path.lastIndexOf("/"); // lastIndexOf("/")  找到最后一个  /  的位置
  var fileName = path.substr(index1 + 1); // substr() 截取剩余的字符，即得文件名xxx.doc
  fileName = fileName?fileName:'';
  info.fileName = fileName;

  var _path = path.substr(0,index1+1); // substr() 截取剩余的字符，即得文件名xxx.doc
  _path = _path?_path:'';
  info.path = _path;

  if(fileName&&fileName.indexOf('.')>0&&fileName[fileName.length-1]!='.'){
    var index2 = fileName.lastIndexOf("."); // lastIndexOf("/")  找到最后一个  .  的位置
    var fileType = fileName.substr(index2 + 1); // substr() 截取剩余的字符，即文件名doc
    info.type = fileType?fileType:'';

    var fileExtension = fileName.substr(index2); // substr() 截取剩余的字符，即文件名.doc
    info.fileExtension = fileExtension?fileExtension:'';

    var name = fileName.substr(0,index2); // substr() 截取前面的字符，即文件名xxx
    info.name = name?name:'';
  }
  return info;
}
/**
 * 截取字符串，可以把多余的部分替换为指定的字符串
 * @param {Object} str    要截取的字符串
 * @param {Object} num    要截取位数
 * @param {Object} tail   替换的字符串，如果不需要替换就传''
 */
function substr(str,num,tail){
  tail = tail?(''+tail):'';
  if(str.length>num){
    str = str.substring(0,num)+tail;
  }
  return str;
}
//用于在ios上精确定位
var GPS = {
  PI: 3.14159265358979324,
  x_pi: 3.14159265358979324 * 3000.0 / 180.0,
  delta: function (lat, lon) {
    // Krasovsky 1940
    //
    // a = 6378245.0, 1/f = 298.3
    // b = a * (1 - f)
    // ee = (a^2 - b^2) / a^2;
    var a = 6378245.0; //  a: 卫星椭球坐标投影到平面地图坐标系的投影因子。
    var ee = 0.00669342162296594323; //  ee: 椭球的偏心率。
    var dLat = this.transformLat(lon - 105.0, lat - 35.0);
    var dLon = this.transformLon(lon - 105.0, lat - 35.0);
    var radLat = lat / 180.0 * this.PI;
    var magic = Math.sin(radLat);
    magic = 1 - ee * magic * magic;
    var sqrtMagic = Math.sqrt(magic);
    dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * this.PI);
    dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * this.PI);
    return { 'lat': dLat, 'lon': dLon };
  },

  //WGS-84 to GCJ-02
  gcj_encrypt: function (wgsLat, wgsLon) {
    if (this.outOfChina(wgsLat, wgsLon))
      return { 'lat': wgsLat, 'lon': wgsLon };

    var d = this.delta(wgsLat, wgsLon);
    return { 'lat': wgsLat + d.lat, 'lon': wgsLon + d.lon };
  },
  //GCJ-02 to WGS-84
  gcj_decrypt: function (gcjLat, gcjLon) {
    if (this.outOfChina(gcjLat, gcjLon))
      return { 'lat': gcjLat, 'lon': gcjLon };

    var d = this.delta(gcjLat, gcjLon);
    return { 'lat': gcjLat - d.lat, 'lon': gcjLon - d.lon };
  },
  //GCJ-02 to WGS-84 exactly
  gcj_decrypt_exact: function (gcjLat, gcjLon) {
    var initDelta = 0.01;
    var threshold = 0.000000001;
    var dLat = initDelta, dLon = initDelta;
    var mLat = gcjLat - dLat, mLon = gcjLon - dLon;
    var pLat = gcjLat + dLat, pLon = gcjLon + dLon;
    var wgsLat, wgsLon, i = 0;
    while (1) {
      wgsLat = (mLat + pLat) / 2;
      wgsLon = (mLon + pLon) / 2;
      var tmp = this.gcj_encrypt(wgsLat, wgsLon)
      dLat = tmp.lat - gcjLat;
      dLon = tmp.lon - gcjLon;
      if ((Math.abs(dLat) < threshold) && (Math.abs(dLon) < threshold))
        break;

      if (dLat > 0) pLat = wgsLat; else mLat = wgsLat;
      if (dLon > 0) pLon = wgsLon; else mLon = wgsLon;

      if (++i > 10000) break;
    }
    //console.log(i);
    return { 'lat': wgsLat, 'lon': wgsLon };
  },
  //GCJ-02 to BD-09
  bd_encrypt: function (gcjLat, gcjLon) {
    var x = gcjLon, y = gcjLat;
    var z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * this.x_pi);
    var theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * this.x_pi);
    bdLon = z * Math.cos(theta) + 0.0065;
    bdLat = z * Math.sin(theta) + 0.006;
    return { 'lat': bdLat, 'lon': bdLon };
  },
  //BD-09 to GCJ-02
  bd_decrypt: function (bdLat, bdLon) {
    var x = bdLon - 0.0065, y = bdLat - 0.006;
    var z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * this.x_pi);
    var theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * this.x_pi);
    var gcjLon = z * Math.cos(theta);
    var gcjLat = z * Math.sin(theta);
    return { 'lat': gcjLat, 'lon': gcjLon };
  },
  //WGS-84 to Web mercator
  //mercatorLat -> y mercatorLon -> x
  mercator_encrypt: function (wgsLat, wgsLon) {
    var x = wgsLon * 20037508.34 / 180.;
    var y = Math.log(Math.tan((90. + wgsLat) * this.PI / 360.)) / (this.PI / 180.);
    y = y * 20037508.34 / 180.;
    return { 'lat': y, 'lon': x };
    /*
    if ((Math.abs(wgsLon) > 180 || Math.abs(wgsLat) > 90))
        return null;
    var x = 6378137.0 * wgsLon * 0.017453292519943295;
    var a = wgsLat * 0.017453292519943295;
    var y = 3189068.5 * Math.log((1.0 + Math.sin(a)) / (1.0 - Math.sin(a)));
    return {'lat' : y, 'lon' : x};
    //*/
  },
  // Web mercator to WGS-84
  // mercatorLat -> y mercatorLon -> x
  mercator_decrypt: function (mercatorLat, mercatorLon) {
    var x = mercatorLon / 20037508.34 * 180.;
    var y = mercatorLat / 20037508.34 * 180.;
    y = 180 / this.PI * (2 * Math.atan(Math.exp(y * this.PI / 180.)) - this.PI / 2);
    return { 'lat': y, 'lon': x };
    /*
    if (Math.abs(mercatorLon) < 180 && Math.abs(mercatorLat) < 90)
        return null;
    if ((Math.abs(mercatorLon) > 20037508.3427892) || (Math.abs(mercatorLat) > 20037508.3427892))
        return null;
    var a = mercatorLon / 6378137.0 * 57.295779513082323;
    var x = a - (Math.floor(((a + 180.0) / 360.0)) * 360.0);
    var y = (1.5707963267948966 - (2.0 * Math.atan(Math.exp((-1.0 * mercatorLat) / 6378137.0)))) * 57.295779513082323;
    return {'lat' : y, 'lon' : x};
    //*/
  },
  // two point's distance
  distance: function (latA, lonA, latB, lonB) {
    var earthR = 6371000.;
    var x = Math.cos(latA * this.PI / 180.) * Math.cos(latB * this.PI / 180.) * Math.cos((lonA - lonB) * this.PI / 180);
    var y = Math.sin(latA * this.PI / 180.) * Math.sin(latB * this.PI / 180.);
    var s = x + y;
    if (s > 1) s = 1;
    if (s < -1) s = -1;
    var alpha = Math.acos(s);
    var distance = alpha * earthR;
    return distance;
  },
  outOfChina: function (lat, lon) {
    if (lon < 72.004 || lon > 137.8347)
      return true;
    if (lat < 0.8293 || lat > 55.8271)
      return true;
    return false;
  },
  transformLat: function (x, y) {
    var ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(Math.abs(x));
    ret += (20.0 * Math.sin(6.0 * x * this.PI) + 20.0 * Math.sin(2.0 * x * this.PI)) * 2.0 / 3.0;
    ret += (20.0 * Math.sin(y * this.PI) + 40.0 * Math.sin(y / 3.0 * this.PI)) * 2.0 / 3.0;
    ret += (160.0 * Math.sin(y / 12.0 * this.PI) + 320 * Math.sin(y * this.PI / 30.0)) * 2.0 / 3.0;
    return ret;
  },
  transformLon: function (x, y) {
    var ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x));
    ret += (20.0 * Math.sin(6.0 * x * this.PI) + 20.0 * Math.sin(2.0 * x * this.PI)) * 2.0 / 3.0;
    ret += (20.0 * Math.sin(x * this.PI) + 40.0 * Math.sin(x / 3.0 * this.PI)) * 2.0 / 3.0;
    ret += (150.0 * Math.sin(x / 12.0 * this.PI) + 300.0 * Math.sin(x / 30.0 * this.PI)) * 2.0 / 3.0;
    return ret;
  }
};
/**
 * 为了减小js版高德地图在ios上定位的误差，需要把经纬度处理一下，返回经纬度信息
 * @param {Object} jd 经度
 * @param {Object} wd 纬度
 */
function getGpsPosition(jd,wd){
  var gpsPoint = GPS.gcj_decrypt(wd, jd);
  var position = new AMap.LngLat(gpsPoint.lon,gpsPoint.lat);
  return position;
}
function getUUID() {
	var s = [];
	var hexDigits = "0123456789abcdef";
	for (var i = 0; i < 36; i++) {
		s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1);
	}
	s[14] = "4"; // bits 12-15 of the time_hi_and_version field to 0010
	s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1); // bits 6-7 of the clock_seq_hi_and_reserved to 01
	s[8] = s[13] = s[18] = s[23] = "-";

	var uuid = s.join("");
	return uuid;
}
function getPosition(sucFunc,falFunc){
  var uuid = getUUID();
  $('body').append('<div id="hidden_map_'+uuid+'" style="display: none;width: 0px;height: 0px;"></div>');
  let map = null;
  try{
    map = new plus.maps.Map("hidden_map");
    map.getUserLocation(function (state, point) {
      if (state==0) {
        //alert('切换使用sdk获取定位成功:'+lng+','+lat);
        sucFunc(point.longitude,point.latitude);
      }else{
        falFunc("定位失败!");
      }
      map.close();
      $('#hidden_map_'+uuid).remove();
    })
  }catch(e){
    console.log(e.message);
    falFunc(e.message);
    if(map){
      map.close();
    }
    $('#hidden_map_'+uuid).remove();
  }
}
export default {
  dateFormat,
  getFileInfo,
  substr,
  getGpsPosition,
  getPosition
}
